/**
 * Created by 84995 on 2020/1/14.
 */
public class test3 {

    public static void main(String[] args) {


        int a=0;
        while (a<=50){
            double  bb=a*a*3.14;
            if (bb<=50){
                System.out.println("园的半径为："+a+"        园的面积为"+bb);
            }
            a++;
        }
    }
}
